sandy hook elementary students have not returned to class. they'll be moved to another facility in a neighboring county. trucks carrying supplies have been leaving the school which is a scene still. >> president obama supports and would support legislation that addresses the problem of the so-called gun show loophole. >> reporter: connecticut's medical examiner says nancy lanza was shot four times in the head while she slept. all of this was too real for first responders who won't soon forget what they saw. >> very early on, it was determined that this was bad, really, really bad. >> as the community tries to return to some sort of normalcy, volunteers hope that some caring pets will hope ease the pain of residents. specially trained therapy dogs are said to help bring comfort to other people when they are suffering or hurting. >>> dozens of people gathered in pleasanton to mourn the loss of so many young lives in last week's shooting. singing songs, praying, and lightning candles, they bonded together. >> pleasanton is much like a small town